I have a 1600 twin port single carb basic set-up which starts first time every time runs sweet, although occasionally coughs under pressure,( uphill ) returns abut 20-22 miles per gallon, just reading Camper and bus about twin carbs, can anyone tell me if twin carbs is worth it i.e. in performance ( we never go over 50 ) and more importantly fuel economy, given we only do about 3000 miles year. Also is there any point at all in putting in an electronic ignition system.
If your happy with performance and it goes well enough then why bother going to the trouble and expense. Leave it standard.
If it aint broke...but personally,I still think my old engine (1700 type 4) was far more superior in the preformance stakes than my 1600 twin port. The twin solex's it had on it gave me an easy 90mph on long runs so it never took too long too get places. But what Dicky says,really. Im happy with my stock 1600 as it is as its meant to be.Sure,it takes a little longer to get places,and the hills can be a bit of a 'gear juggler',but i only use it for reacreation and i always make sure i never have to be in a hurry with it.We have come a long way since the '70's in the form of transport technology. Mind you,i never go over 55mph with it.I did get 70mph out of it last summer on the way back from Cornywall for a laugh! Incidentally,i replaced the speedo in it for a calender...
Thats what I thought but there always is some pressure to do or add something, to be honest I'm happy not to do anything exempt service it ( more later ) does 20-22 mpg sound about right I think all the other busses I have had did about the same but they were a while ago and fuel was cheaper so did not really take any notice I do however have a problem with the fuel gauge, when I fill up it reads full then it works normally till it gets half way down then it drops to empty ( although I know it isn't ) anyone got any ideas what might be causing this ?
20 - 22 isnt great but there are people who get worse. If you dont go above 50 and only do a few miles a year I wouldnt bother.
I know the mileage is not great and it really would not make financial sense just looking to get the best mpg I can from the old girl, any tips I am hoping to fix the fuel gauge without resorting to replacing the fuel gauge sender a mammoth task methinks
I, when i purchased my bus considered changing from the in situ twin dells to origional carb set up ,my mate with endless experience of working on campers told me not much point> if i was chasing better fuel consumption/mpg, as i understand the conversion,it may be summit to do with ,the stand alone aftermarket carbs, less fuel freezing cos mix has less way to travel/better breathing?now vthat i have owned said bus 9 years i realise chasing good fuel consumption is a lost cause ,i need to get a better paid job and stuff the plight of the panda bears/icebergs
After fitting my Weber 34 ICT's I instantly noticed the van to me more drivable. It pulled better on the hills and gave me about an extra 5mpg. That was after a rolling road session to get it all set up. THe rolling road session was £200. so don't forget to factor that in to the cost of the carbs. So much better than the original single carb. Total cost was about £500. 36 Dellortos are about the best twin carbs but a pair of them will cost about £600 just for the kit. regarding electronic ignition. definitely.
The better mileage is probably just set up, not that the webers are more efficient than your old carb. You won't get better fuel economy out of dells. If you're looking for stick performance and stock mileage you're better off staying stock.
That's nonsense. They'll all do much the same on a run, single, ICT's or Dells. When you boot it though the Dells will use most fuel, followed by ICT's then the single, matched by performance.
How's it nonsense when you've basically said what I said but in a different way? The ops interest is in fuel economy, he's not going to get better fuel economy out of the carbs mentioned. He'll get better performance, particularly on the hills around where he lives, but that will come with the inevitable trade off against economy. I've yet to meet anyone who has installed a 'performance' upgrade and then hasn't used it. When you use it you consume more fuel. There's no escaping that.
